Universal Fit: Featuring a seat post hitch compatible with seat posts ranging from 1-1.5in. diameter, attaches to most bicycles and e-bikes. Versatility: the Towing Tee is is compatible with any Wike portage cart, offering maximum flexibility in boat or board transport (cart not included). Lightweight and Durable: Crafted with 6063 aluminum tube and easy to use hardware, the Towing Tee is simple but robust. Soft and Secure: Padded arms hug your boat for maximum security, while preventing damage or premature wear and tear on your boat. Tie and Go: Connect your boat to the Towing Tee at three points: over, under, and around a seat with the included heavy duty straps and steel buckles. Peace of Mind: with Wike’s limited 12-month warranty, you have the ultimate quality assurance for fun, safe, eco-friendly biking and boating adventures. Size Medium Color Silver/Black Material Aluminum, Nylon Brand Name WIKE Model Name WA-031 Manufacturer WIKE Inc. Warranty Description 1 Year Manufacturer's Warranty